远程Tomcat部署的ANT获得500

Question

So I made an ANT target to deploy our app to Tomcat on a remote development server. The ANT deploy to tomcat target works 100% perfect on a local Tomcat instance. When I deploy to the remote server I get a fat 500 error but the application actually deploys to the server and we can view and use it just fine as if there were no errors.

Super cool that it works but the 500 error causes the ANT target to say the build failed. If ANT says the build failed, so will Hudson our build server, which means we will have sad red dots instead of happy green ones.

We are using the latest and greatest ANT with Tomcat v9.

Below is the error I get when I execute my "ant deploy-dev" target.

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[username@localhost app.directory]$ ant deploy-dev Buildfile: /home/username/git/app.directory/build.xml Trying to override old definition of datatype resources

deploy-dev: [echo] Deploying app to: https://dev.myapp.com BUILD FAILED /home/username/git/app.directory/build.xml:73: The following error occurred while executing this line: /home/username/git/app.directory/build.xml:146: java.io.IOException: Server returned HTTP response code: 500 for URL: https://dev.myapp.com/manager/text/deploy?path=%2Fmy-app%2F at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1840) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) at org.apache.catalina.ant.AbstractCatalinaTask.execute(AbstractCatalinaTask.java:254) at org.apache.catalina.ant.DeployTask.execute(DeployTask.java:194) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:68) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:396) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.Target.execute(Target.java:435) at org.apache.tools.ant.Target.performTasks(Target.java:456) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405) at org.apache.tools.ant.Project.executeTarget(Project.java:1376) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) at org.apache.tools.ant.Project.executeTargets(Project.java:1260) at org.apache.tools.ant.Main.runBuild(Main.java:854) at org.apache.tools.ant.Main.startAnt(Main.java:236) at org.apache.tools.ant.launch.Launcher.run(Launcher.java:285) at org.apache.tools.ant.launch.Launcher.main(Launcher.java:112)

deploy-dev: [echo] Deploying app to: https://dev.myapp.com BUILD FAILED /home/username/git/app.directory/build.xml:73: The following error occurred while executing this line: /home/username/git/app.directory/build.xml:146: java.io.IOException: Server returned HTTP response code: 500 for URL: https://dev.myapp.com/manager/text/deploy?path=%2Fmy-app%2F at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1840) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) at org.apache.catalina.ant.AbstractCatalinaTask.execute(AbstractCatalinaTask.java:254) at org.apache.catalina.ant.DeployTask.execute(DeployTask.java:194) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:68) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:396) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.Target.execute(Target.java:435) at org.apache.tools.ant.Target.performTasks(Target.java:456) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405) at org.apache.tools.ant.Project.executeTarget(Project.java:1376) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) at org.apache.tools.ant.Project.executeTargets(Project.java:1260) at org.apache.tools.ant.Main.runBuild(Main.java:854) at org.apache.tools.ant.Main.startAnt(Main.java:236) at org.apache.tools.ant.launch.Launcher.run(Launcher.java:285) at org.apache.tools.ant.launch.Launcher.main(Launcher.java:112)

Total time: 3 minutes 3 seconds

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To get an idea of what is running, here is the important parts of the ANT build.xml.

 <property environment="env"/> <property file="build.properties"/> <!-- Import --> <import file="${env.CATALINA_HOME}/bin/catalina-tasks.xml" optional="true"/> <!-- The deploy to Tomcat target --> <target name="deploy-local" description="Deploy the app to local Tomcat"> <tomcat-deploy base-url="${url.base.local}"/> </target> <target name="deploy-dev" description="Deploy the app to dev Tomcat"> <tomcat-deploy base-url="${url.base.dev}"/> </target> <target name="undeploy-local" depends="stop-local" description="Undeploy the app from local Tomcat"> <tomcat-undeploy base-url="${url.base.local}"/> </target> <target name="undeploy-dev" depends="stop-dev" description="Undeploy the app from dev Tomcat"> <tomcat-undeploy base-url="${url.base.dev}"/> </target> <target name="stop-local" description="Stop the app on local Tomcat"> <tomcat-stop base-url="${url.base.local}"/> </target> <target name="stop-dev" description="Stop the app on dev Tomcat"> <tomcat-stop base-url="${url.base.dev}"/> </target> <macrodef name="tomcat-deploy"> <attribute name="base-url"/> <sequential> <echo>Deploying app to: @{base-url}</echo> <deploy url="@{base-url}/manager/text" username="${username}" password="${password}" path="/${app.name}" war="file:${war.path}.war"/> </sequential> </macrodef> <macrodef name="tomcat-undeploy"> <attribute name="base-url"/> <sequential> <echo>Un-deploying app from: @{base-url}</echo> <undeploy failonerror="no" url="@{base-url}/manager/text" username="${username}" password="${password}" path="/${app.name}" /> </sequential> </macrodef> <macrodef name="tomcat-stop"> <attribute name="base-url"/> <sequential> <echo>Stopping the app at: @{base-url}</echo> <stop url="@{base-url}/manager/text" username="${username}" password="${password}" path="/${app.name}" /> </sequential> </macrodef> 

Anyone have any idea why the deploy to remote works but still returns an error? The error I get is kind of vague so I don't know what I could do to debug it.

Answer 1

The problem was the server was taking too long to deploy the app. Somewhere the Tomcat Deploy target is waiting for a response from the server saying the app was deployed. Unfortunately the only error is the 500 and there is nothing else to go on.

The solution, I simply re-installed Tomcat with Version 9, up from 8, and everything turned on much faster and the build was successful.

I can't really say this is the best answer but I got everything working.Hopefully someone has a better solution one day.